The brisket stall, explained (and why your pit isn't broken)
Published 2026-04-20 · BrisketCalc
The first real brisket I ever cooked was a 13-pound packer on a Weber Smokey Mountain, Labor Day weekend 2018. I set the pit at 225°F, put the probe in, and watched the graph on my Signals app like it was the stock market. For the first four hours the climb was beautiful. Steady, predictable, 140°F, 150°F, 158°F. Then, around hour five, it stopped.
Not slowed. Stopped.
I did what every first-timer does. Checked the pit temp. Checked the probe was still in the meat. Added a split. Opened the vents. Cranked to 275°F. Two hours later the brisket was still at 162°F and I was pretty sure I had broken something expensive.
I hadn't. I'd just met the stall.
What's actually happening
For years the folklore said the stall was collagen breaking down and absorbing energy. Then Meathead Goldwyn, of AmazingRibs.com, stuck thermometers into wet paper towels and dry paper towels and showed the world what was actually going on.
It's evaporative cooling. That's it. When a wet surface sits in moving air, water evaporates, and evaporation absorbs heat. Your brisket, sitting at 150°F in a 225°F pit with air flowing over it, is essentially a giant sweating meatloaf. The surface sweats moisture; the moisture evaporates; the evaporation steals heat at almost exactly the same rate the smoker is adding it.
Net temperature change: zero. For hours.
The math works the same way as the way your body stays cool on a hot day. Same physics. Different animal.
Myths worth busting
People will tell you the stall is about humidity in your smoker. Partially true, drier air pulls evaporation faster and actually makes the stall more intense, counter to what you'd expect. A water pan won't end the stall. It just changes the ratios.
Or they'll tell you the stall means your pit is too cold. Nope. I've had worse stalls at 275°F than at 225°F because the airflow was higher. More airflow = more evaporation = deeper stall.
Or, the one I still hear at every cook-off, that the stall is collagen "using up" energy. The chemistry on that one just doesn't math out. Collagen breakdown happens throughout the cook and doesn't have a phase transition big enough to flatline a 13-pound chunk of meat for three hours.
It's evaporation. Every time.
How long does it last?
Depends. Variables I've watched actually matter, from biggest to smallest:
- Airflow over the meat. Convection kills you. Pellet grills with aggressive fans stall harder than a still WSM.
- Ambient humidity. Dry winter air = deeper stall. Last February I ran a Yoder YS640 at 15°F outside and the stall lasted nearly 5 hours unwrapped.
- Surface area to mass ratio. A flat alone stalls longer, per pound, than a whole packer. More surface, same moisture budget.
- Pit temp. Higher pit temps can push through the stall faster once the surface dries, but also trigger a deeper stall first.
For a 12–14 pound packer, in typical conditions, expect 2 to 4 hours of stall. On a still kettle in a humid August backyard, more like 90 minutes. On a ripping pellet grill in dry cold air, you can see 5+.
Your two options
Ride it out or wrap it. Those are the moves. Anything else, cranking the temp, spritzing constantly, poking holes in the meat, ranges from unhelpful to actively counterproductive.
Ride it out. No wrap. The brisket eventually depletes enough surface moisture that evaporation slows, and the temperature climbs again. This gives you the deepest, darkest bark you'll ever make. It also adds 2+ hours to your cook.
Wrap it. At about 165°F internal, bark set, tightly wrap in pink butcher paper or foil. You just eliminated evaporation. The stall ends inside 20 minutes. You lose some bark crispness, a lot more with foil, a little with paper. You save 90 minutes or more.
Aaron Franklin wraps in paper around 165°F, every time. Harry Soo rides a lot of his cooks unwrapped. Both guys have trophies. There's no wrong answer.
A weird thing I noticed
If you wrap and then unwrap an hour later, which I've done when I was convinced my bark was getting too soft, the stall will often restart briefly. Not a full stall, maybe 20 minutes. That's the new surface moisture finding the air again. If you need the paper off to firm bark, do it in the last 30 minutes of the cook, not earlier.
The February cook that taught me the most
February 2022. Cold front pushed through Kansas, the backyard thermometer read 11°F at 6am, and I'd committed to an overnight brisket for a Super Bowl party. 15-pound Butcher Box packer on the Yoder YS640. I set the pit at 250°F, went to bed at 11pm, and woke up at 5am to find the brisket parked at 158°F. It had been stalled for over four hours. I panicked a little. Cranked the pit to 285°F, wrapped in pink butcher paper at hour 9, and the thing still didn't hit probe tender until 2pm, about 90 minutes before kickoff.
Here's what I learned. The dry winter air, the convection fan, and the exposed mass of a big cold brisket all stacked up to produce the deepest, longest stall I've ever measured. Ambient conditions matter more than any single cookbook will tell you. Now, for cold-weather cooks, I automatically add an extra hour of stall buffer on top of the calculator's default, and I wrap at 163°F instead of waiting for 170°F. Your pit, your weather, your meat: the variables compound, and the only real defense is a cook schedule that assumes the worst case.
Wrap vs wait, a quick decision framework
If you're serving within 12 hours of lighting the pit, wrap. If you have 14+ hours and you want the darkest possible bark, ride it. If your ambient humidity is below 30% or the pit is a convection-heavy pellet grill, lean toward wrapping earlier. If it's humid and the pit is a still kettle or WSM, you can push the wrap later or skip it entirely.
What the calculator does with all this
The BrisketCalc time calculator bakes stall buffers right into the cook estimate. No wrap: 90-minute stall buffer added. Butcher paper: 45 minutes. Foil: 20. It's not exact, your pit, your meat, your weather will shift the numbers, but it gives you a margin that prevents the most common scenario, which is guests showing up at 6pm while your brisket sits at 162°F for the third hour.
The single best thing you can do on your next cook: plan to finish 2–3 hours before you want to eat. If it runs long, you still have time. If it runs short, you've got hours of rest in a warm cooler, which, honestly, makes the brisket better anyway.
Related reading: the complete brisket smoking guide and the FAQ.